/Engine/Source/Runtime/Slate/Public/Framework/Application/SlateApplication.h
Attempts to navigate directly to the widget currently under the given user's cursor
void NavigateFromWidgetUnderCursor ( const uint32 InUserIndex, EUINavigation InNavigationType, [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWindow](API\Runtime\SlateCore\Widgets\SWindow) > InWindow )